Getting Started
NVIDIA® SLI
Technology
NVIDIA’s SLI (Scalable Link Interface) technology allows two or more GPUs to run in tandem within a system to achieve significant graphics performance gains. To utilize this technology, the GPU cards must be connected by an SLI Video Link.
If you intend to use SLI mode, please follow the instructions below to properly set up SLI mode. The instructions below are meant for a two video card SLI configuration.
1.Install two NVIDIA graphics cards in the PCI_E2 and the PCI_E5 slots.
2.With the two cards installed, a SLI Video Link cable is required to connect the graphics cards. Attach one side of the cable on each of the cards by way of the metal contacts (please refer to the picture below). Please note that although two graphics cards have been installed, only the display ports on the graphics card installed in the first PCIe x16 slot will work. All displays should be connected to this graphics card.
SLI Video Link Cable 
3.Boot up the computer and install the drivers and software included in your video card package. For more information, please refer to the manual that came with your video card.